| Champaign to Popovo | 5,374.30 mi (8,649.09 km) |
| Champaign to Provadia | 5,425.15 mi (8,730.94 km) |
| Champaign to Radnevo | 5,414.41 mi (8,713.65 km) |
| Champaign to Radomir | 5,292.53 mi (8,517.50 km) |
| Champaign to Rakitovo | 5,361.56 mi (8,628.60 km) |
| Champaign to Rakovski | 5,379.58 mi (8,657.59 km) |
| Champaign to Razgrad | 5,375.50 mi (8,651.04 km) |
| Champaign to Razlog | 5,343.30 mi (8,599.21 km) |
| Champaign to Ruse | 5,341.41 mi (8,596.18 km) |
| Champaign to Samokov | 5,325.12 mi (8,569.96 km) |
| Champaign to Sandanski | 5,351.30 mi (8,612.08 km) |
| Champaign to Sevlievo | 5,349.58 mi (8,609.31 km) |
| Champaign to Shumen | 5,402.51 mi (8,694.50 km) |
| Champaign to Silistra | 5,373.28 mi (8,647.46 km) |
| Champaign to Sliven | 5,410.28 mi (8,707.00 km) |
